1.PDC drill bit 2.best price 3.wide size code 4.certified by API,ISO 5.delivery on time The ... characters of the Y3107/M715 PDC drill bit are as ... We are handling in tricone bits, PDC bits, core drill bits, drilling accessories and so on.Here is the range ... of tricone drill bit:sizebit typein.mm6152.4136,127,517,537,617, ...